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Nasa's Swift satellite discovers massive black hole

Nov 20, 2014    

Washington: Researchers analysing decades of observations from NASA's Swift satellite have discovered an unusual source of light in a galaxy some 90 million light-years away.The object's curious properties make it a good match for a supermassive black hole ejected from its home galaxy after merging with another giant black hole, the US space agency said in a statement.But astronomers cannot yet rule out an alternative possibility. The source, called SDSS1133, may be the remnant of a massive star that erupted for a record period of time before destroying itself in a supernova explosion.One exci...

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